Home / 1,556.72-2,331.36-1,207.52

Finding the Fourth Proportional to 1,556.72, 2,331.36 and 1,207.52

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Solution

The fourth proportional to 1,556.72, 2,331.36 and 1,207.52 is: 1,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.72 : 2,331.36 = 1,207.52 : x
  2. Step 2: Convert to fraction form
    1,556.72/2,331.36 = 1,207.52/x
  3. Step 3: Cross multiply
    1,556.72x = 2,331.36 × 1,207.52
  4. Step 4: Simplify right side
    1,556.72x = 2,815,163.83
  5. Step 5: Solve for x
    x = 2,815,163.83/1,556.72
  6. Step 6: Final answer
    x = 1,808.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.